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  <section id="cmake-policy-warning-cmp-nnnn">
<span id="variable:CMAKE_POLICY_WARNING_CMP<NNNN>"></span><h1>CMAKE_POLICY_WARNING_CMP&lt;NNNN&gt;<a class="headerlink" href="#cmake-policy-warning-cmp-nnnn" title="Permalink to this heading">¶</a></h1>
<p>Explicitly enable or disable the warning when CMake Policy <code class="docutils literal notranslate"><span class="pre">CMP&lt;NNNN&gt;</span></code>
has not been set explicitly by <span class="target" id="index-0-command:cmake_policy"></span><a class="reference internal" href="../command/cmake_policy.html#command:cmake_policy" title="cmake_policy"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">cmake_policy()</span></code></a> or implicitly
by <span class="target" id="index-0-command:cmake_minimum_required"></span><a class="reference internal" href="../command/cmake_minimum_required.html#command:cmake_minimum_required" title="cmake_minimum_required"><code class="xref cmake cmake-command docutils literal notranslate"><span class="pre">cmake_minimum_required()</span></code></a>. This is meaningful
only for the policies that do not warn by default:</p>
<ul class="simple">
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0025</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0025"></span><a class="reference internal" href="../policy/CMP0025.html#policy:CMP0025" title="CMP0025"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0025</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0047</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0047"></span><a class="reference internal" href="../policy/CMP0047.html#policy:CMP0047" title="CMP0047"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0047</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0056</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0056"></span><a class="reference internal" href="../policy/CMP0056.html#policy:CMP0056" title="CMP0056"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0056</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0060</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0060"></span><a class="reference internal" href="../policy/CMP0060.html#policy:CMP0060" title="CMP0060"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0060</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0065</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0065"></span><a class="reference internal" href="../policy/CMP0065.html#policy:CMP0065" title="CMP0065"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0065</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0066</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0066"></span><a class="reference internal" href="../policy/CMP0066.html#policy:CMP0066" title="CMP0066"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0066</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0067</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0067"></span><a class="reference internal" href="../policy/CMP0067.html#policy:CMP0067" title="CMP0067"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0067</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0082</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0082"></span><a class="reference internal" href="../policy/CMP0082.html#policy:CMP0082" title="CMP0082"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0082</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0089</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0089"></span><a class="reference internal" href="../policy/CMP0089.html#policy:CMP0089" title="CMP0089"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0089</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0102</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0102"></span><a class="reference internal" href="../policy/CMP0102.html#policy:CMP0102" title="CMP0102"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0102</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0112</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0112"></span><a class="reference internal" href="../policy/CMP0112.html#policy:CMP0112" title="CMP0112"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0112</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0116</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0116"></span><a class="reference internal" href="../policy/CMP0116.html#policy:CMP0116" title="CMP0116"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0116</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0126</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0126"></span><a class="reference internal" href="../policy/CMP0126.html#policy:CMP0126" title="CMP0126"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0126</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0128</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0128"></span><a class="reference internal" href="../policy/CMP0128.html#policy:CMP0128" title="CMP0128"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0128</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0129</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0129"></span><a class="reference internal" href="../policy/CMP0129.html#policy:CMP0129" title="CMP0129"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0129</span></code></a>.</p></li>
<li><p><code class="docutils literal notranslate"><span class="pre">CMAKE_POLICY_WARNING_CMP0133</span></code> controls the warning for
policy <span class="target" id="index-0-policy:CMP0133"></span><a class="reference internal" href="../policy/CMP0133.html#policy:CMP0133" title="CMP0133"><code class="xref cmake cmake-policy docutils literal notranslate"><span class="pre">CMP0133</span></code></a>.</p></li>
</ul>
<p>This variable should not be set by a project in CMake code.  Project
developers running CMake may set this variable in their cache to
enable the warning (e.g. <code class="docutils literal notranslate"><span class="pre">-DCMAKE_POLICY_WARNING_CMP&lt;NNNN&gt;=ON</span></code>).
Alternatively, running <span class="target" id="index-0-manual:cmake(1)"></span><a class="reference internal" href="../manual/cmake.1.html#manual:cmake(1)" title="cmake(1)"><code class="xref cmake cmake-manual docutils literal notranslate"><span class="pre">cmake(1)</span></code></a> with the
<a class="reference internal" href="../manual/cmake.1.html#cmdoption-cmake-debug-output"><code class="xref std std-option docutils literal notranslate"><span class="pre">--debug-output</span></code></a>,
<a class="reference internal" href="../manual/cmake.1.html#cmdoption-cmake-trace"><code class="xref std std-option docutils literal notranslate"><span class="pre">--trace</span></code></a>, or
<a class="reference internal" href="../manual/cmake.1.html#cmdoption-cmake-trace-expand"><code class="xref std std-option docutils literal notranslate"><span class="pre">--trace-expand</span></code></a> option will also
enable the warning.</p>
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